CR-V engine problems

[Morris Minor]

I still am curious as to why the CR-V seems prone to this issue, but not the Accord or Civic.

This doesn't sound as bad as the R18 block cracking issues of the Mid 00's tho.

My uneducated guess is that the heater for the passenger cabin in the CR-V may be different - sucking more heat to warm a larger volume than the others. But I really don't know - Honda are not forthcoming from what others are saying.

[Morris Minor]

City or highway?

That's between fills - mixed journeys - 50% rural @ 50-ish mph - and 50% suburban with traffic lights.

[12,000 RPM]

Turbocharged direct injection engines all have some unforeseen issues like this thing with Honda. Another issue is when the engine is hot, there's a possibility of something called mega-knock caused by pre-ignition in low RPM/high load situations.
The reason for it is fairly technical, related to the space between the cylinder wall and the beginning of the top compression ring.

Let's just say if I was getting a new F150, it would be the 5.0 engine.

Yea, there is a lot of bellyaching with the stickshift turbo Fords and lugging it in high gears. In a small naturally aspirated engine you wouldn't run the engine that way as there's no torque.... but since the turbo DI engines can build big boost down low it becomes a recipe for disaster. I think automatics are programmed to stay out of that danger zone. If I ever get another stickshift car hopefully it will be naturally aspirated and port injected.

[FoMoJo]

Yea, there is a lot of bellyaching with the stickshift turbo Fords and lugging it in high gears. In a small naturally aspirated engine you wouldn't run the engine that way as there's no torque.... but since the turbo DI engines can build big boost down low it becomes a recipe for disaster. I think automatics are programmed to stay out of that danger zone. If I ever get another stickshift car hopefully it will be naturally aspirated and port injected.

A small turbo engine without a multi-multi-speed automatic makes no sense.  With a 8, 9, 10 speed auto with appropriate software, it's excellent. 

[Eye of the Tiger]

A small turbo engine without a multi-multi-speed automatic makes no sense.  With a 8, 9, 10 speed auto with appropriate software, it's excellent.

I love the wide-ratio 5-speed manual in my Fiesta. The only time that it's not great is in stop-n-go bullshit city traffic. It needs a granny gear for idling along with all the mindless creepers in their automatics.

[FoMoJo]

I love the wide-ratio 5-speed manual in my Fiesta. The only time that it's not great is in stop-n-go bullshit city traffic. It needs a granny gear for idling along with all the mindless creepers in their automatics.

Sticks make no sense if your commute is stop'n'go.

[Eye of the Tiger]

Sticks make no sense if your commute is stop'n'go.

That's part of the reason the car is in storage right now. Instead, I drive my Dakota with a stick...

[AutobahnSHO]

I can smell gas from Subaru's exhaust when I back it out of the garage first thing in the morning. Otherwise it's fine.

I've actually been very surprised that ALL the manufacturers don't have more motor issues with brand new powerplants. Remarkable how good the engineering and testing usually is.

[giant_mtb]

I can smell gas from Subaru's exhaust when I back it out of the garage first thing in the morning. Otherwise it's fine.

That's normal for a cold start on a cold day...engines run rich when they're cold.

[Morris Minor]

Honda has started sending out bulletins to owners telling them to make appointments, apparently to get an "emissions issue" fixed that also deals with a cylinder misfire issue: reprogramming the ECM & replacing the climate control box of tricks. 1.1 hours of work.

I suppose the aroma of raw VOCs floating out from the engine bay could be considered an "emissions problem."

[FoMoJo]

Honda has started sending out bulletins to owners telling them to make appointments, apparently to get an "emissions issue" fixed that also deals with a cylinder misfire issue: reprogramming the ECM & replacing the climate control box of tricks. 1.1 hours of work.

I suppose the aroma of raw VOCs floating out from the engine bay could be considered an "emissions problem."

Not long enough to replace the engine.  I guess they're still in denial.

[Morris Minor]

I'm going to have to see if there's a class action lawsuit I can join. Sigh.

[Soup DeVille]

I'm going to have to see if there's a class action lawsuit I can join. Sigh.

The biggest concern there is that there are so many better things to do with a working time machine.

[Morris Minor]

Oops I'd better fix that 

[12,000 RPM]

Did you get that fix done?

[Eye of the Tiger]

Did you get a used oil analysis?

[Morris Minor]

Did you get a used oil analysis?

Great idea - I just ordered a kit. tks

Did you get that fix done?

Sporty, no. There's a TSB out for an alleged fix, but they're rolling it geographically : starting in Canada & the northern states & going southwards.
So, being in Georgia, despite living in the state's cooler microclimate, I'm low down the totem pole.

[FoMoJo]

I'm going to have to see if there's a class action lawsuit I can join. Sigh.

What weight is the oil...and why is it bright orange?

[shp4man]

What weight is the oil...and why is it bright orange?

LOL, that's the Japanese idea of a dipstick. I mean, c'mon. Earth Dreams?   

[CaminoRacer]

What weight is the oil...and why is it bright orange?

Orange because of the gas in it. Will be clear soon enough. Probably -10 weight now

[GoCougs]

So who is finally gonna do turbo motors right, if not Honda?

Jesus, what a travesty.

[FoMoJo]

So who is finally gonna do turbo motors right, if not Honda?

Jesus, what a travesty.

Obviously not Honda.  There are a ton of small displacement Turbo engines that do just fine.  The common problem is carbon buildup on the intake valve back due to, largely, oil mist from the PCV system that is not washed off by injected fuel.  This has been resolved in a couple of ways, by combining both direct and port injection systems, Ford and Toyota, and by filtering any oil from the PCV system.  Whatever Honda has done is still somewhat of a mystery; except perhaps for Honda.  No excuse for fuel leaking through the cylinder walls; even with 0 weight oil.

[MrH]

Seems like a weird piston ring tolerance  stack up issue at certain temperatures that only affects the 1.5? My 2.0T has been fine so far. Knock on wood.

[MrH]

Interesting that Honda put this video out...

https://youtu.be/fVdKNRgzGT8

[GoCougs]

Obviously not Honda.  There are a ton of small displacement Turbo engines that do just fine.  The common problem is carbon buildup on the intake valve back due to, largely, oil mist from the PCV system that is not washed off by injected fuel.  This has been resolved in a couple of ways, by combining both direct and port injection systems, Ford and Toyota, and by filtering any oil from the PCV system.  Whatever Honda has done is still somewhat of a mystery; except perhaps for Honda.  No excuse for fuel leaking through the cylinder walls; even with 0 weight oil.

Nah, turbos are all disasters. Ecoboost, BMW, they've all been train wrecks of one or more flavors. The value lost has been absolutely immense.

Gas (and gas-contaminated oil, even 0 weight oil) will get by piston rings - it will happen in all engines. The ring/cylinder wall interface is designed for a certain viscosity of fluid.

Toyota is mostly staying away from turbos, esp. in their mainline products - Camry, Corolla, Rav4, Highlander, Tacoma, etc. It's proving to be very smart.

[FoMoJo]

Seems like a weird piston ring tolerance  stack up issue at certain temperatures that only affects the 1.5? My 2.0T has been fine so far. Knock on wood.

There, apparently, are 4 versions of the 1.5 Turbo, lower ratings for the Civic, 174 bhp and for the CR-V, it's 190 bhp; presumably higher compression, etc.  There's also a hotter version for the Civic Si that puts out 205 bhp.  The version in the Accord has 192 bhp.

I wonder if they all have the same problem. 

[FoMoJo]

Nah, turbos are all disasters. Ecoboost, BMW, they've all been train wrecks of one or more flavors. The value lost has been absolutely immense.

Gas (and gas-contaminated oil, even 0 weight oil) will get by piston rings - it will happen in all engines. The ring/cylinder wall interface is designed for a certain viscosity of fluid.

Toyota is mostly staying away from turbos, esp. in their mainline products - Camry, Corolla, Rav4, Highlander, Tacoma, etc. It's proving to be very smart.

Since their inception, any defect in engines of various types will always be addressed; with the exception of engines that are complete garbage.  This is true of small displacement DI turbo engines as well.  If you pay attention to what is happening in the industry, you will recognize this.  Problems on DI Turbo engines, such as carbon on the back of intake values have been addressed by the better manufacturers.  For any DI engine, materials used, especially in cylinder walls, is extremely important.

[GoCougs]

Since their inception, any defect in engines of various types will always be addressed; with the exception of engines that are complete garbage.  This is true of small displacement DI turbo engines as well.  If you pay attention to what is happening in the industry, you will recognize this.  Problems on DI Turbo engines, such as carbon on the back of intake values have been addressed by the better manufacturers.  For any DI engine, materials used, especially in cylinder walls, is extremely important.

True, most engine issues/technologies get fixed, but turbos overall have always been a bane for the automotive world. In the off chance its not durability/reliability problems it's under-performing MPG and/or worser ownership experience (lag, higher maintenance/repair costs, temp sensitivity, worse emissions, etc.).

[FoMoJo]

True, most engine issues/technologies get fixed, but turbos overall have always been a bane for the automotive world. In the off chance its not durability/reliability problems it's under-performing MPG and/or worser ownership experience (lag, higher maintenance/repair costs, temp sensitivity, worse emissions, etc.).

As someone who has a small displacement DI Turbo, I highly recommend it to anyone who was excellent performance for great fuel efficiency, better if it has a 9 or 10 speed transmission that is properly synched to the engine.  Of course, any engine/transmission combo will give poor gas mileage if you have a lead foot and drive like a maniac.  Myself, having a delicate foot on the accelerator pedal, most of the time, have been able to get up to 6.6 L/100K (35.6 mpg) with a fairly heavy SUV.

The only problem with small displacement DI Turbo engines in bad engineering and crappy software.

[GoCougs]

As someone who has a small displacement DI Turbo, I highly recommend it to anyone who was excellent performance for great fuel efficiency, better if it has a 9 or 10 speed transmission that is properly synched to the engine.  Of course, any engine/transmission combo will give poor gas mileage if you have a lead foot and drive like a maniac.  Myself, having a delicate foot on the accelerator pedal, most of the time, have been able to get up to 6.6 L/100K (35.6 mpg) with a fairly heavy SUV.

The only problem with small displacement DI Turbo engines in bad engineering and crappy software.

But if it's the "only" problem, how is it so many automakers have problems with it?